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| author | Fam Zheng <famz@redhat.com> | 2015-10-30 12:06:28 +0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2015-11-09 09:59:32 +0000 |
| commit | 37fcee5d1154b7a03c13582e128bcc31ad43e954 (patch) | |
| tree | f911442fcedb9116ad498daa0e9529eb936feb6f | |
| parent | 5ceb9e39284b69d2e1b01da3cb1894ad4b2b4606 (diff) | |
| download | qemu-37fcee5d1154b7a03c13582e128bcc31ad43e954.tar.gz qemu-37fcee5d1154b7a03c13582e128bcc31ad43e954.tar.bz2 qemu-37fcee5d1154b7a03c13582e128bcc31ad43e954.zip | |
aio: Introduce aio_context_setup
This is the place to initialize platform specific bits of AioContext.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1446177989-6702-3-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | aio-posix.c | 4 | ||||
| -rw-r--r-- | aio-win32.c | 4 | ||||
| -rw-r--r-- | async.c | 13 | ||||
| -rw-r--r-- | include/block/aio.h | 8 |
4 files changed, 27 insertions, 2 deletions
diff --git a/aio-posix.c b/aio-posix.c index 0467f23a63..5bff3cd670 100644 --- a/aio-posix.c +++ b/aio-posix.c @@ -302,3 +302,7 @@ bool aio_poll(AioContext *ctx, bool blocking) return progress; } + +void aio_context_setup(AioContext *ctx, Error **errp) +{ +} diff --git a/aio-win32.c b/aio-win32.c index 43c4c79a75..cdc445608b 100644 --- a/aio-win32.c +++ b/aio-win32.c @@ -369,3 +369,7 @@ bool aio_poll(AioContext *ctx, bool blocking) aio_context_release(ctx); return progress; } + +void aio_context_setup(AioContext *ctx, Error **errp) +{ +} @@ -325,12 +325,18 @@ AioContext *aio_context_new(Error **errp) { int ret; AioContext *ctx; + Error *local_err = NULL; + ctx = (AioContext *) g_source_new(&aio_source_funcs, sizeof(AioContext)); + aio_context_setup(ctx, &local_err); + if (local_err) { + error_propagate(errp, local_err); + goto fail; + } ret = event_notifier_init(&ctx->notifier, false); if (ret < 0) { - g_source_destroy(&ctx->source); error_setg_errno(errp, -ret, "Failed to initialize event notifier"); - return NULL; + goto fail; } g_source_set_can_recurse(&ctx->source, true); aio_set_event_notifier(ctx, &ctx->notifier, @@ -345,6 +351,9 @@ AioContext *aio_context_new(Error **errp) ctx->notify_dummy_bh = aio_bh_new(ctx, notify_dummy_bh, NULL); return ctx; +fail: + g_source_destroy(&ctx->source); + return NULL; } void aio_context_ref(AioContext *ctx) diff --git a/include/block/aio.h b/include/block/aio.h index cab7c765e3..9ffecf7977 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -429,4 +429,12 @@ static inline bool aio_node_check(AioContext *ctx, bool is_external) return !is_external || !atomic_read(&ctx->external_disable_cnt); } +/** + * aio_context_setup: + * @ctx: the aio context + * + * Initialize the aio context. + */ +void aio_context_setup(AioContext *ctx, Error **errp); + #endif |